Please note: Half sizes in Blundstone styles only increase in width, half sizes do not increase in length.
Please note: The size shown in the "Select size" dropdown is an Australian size.
| AU Size | US Women's Size | US Men's Size | EU Size |
| AU 2 | US 5 | US 3 | 35 |
| AU 3 | US 6 | US 4 | 36 |
| AU 3.5 | US 6.5 | US 4.5 | 36.5 |
| AU 4 | US 7 | US 5 | 37 |
| AU 4.5 | US 7.5 | US 5.5 | 38 |
| AU 5 | US 8 | US 6 | 38.5 |
| AU 5.5 | US 8.5 | US 6.5 | 39 |
| AU 6 | US 9 | US 7 | 40 |
| AU 6.5 | US 9.5 | US 7.5 | 41 |
| AU 7 | US 10 | US 8 | 41.5 |
| AU 7.5 | US 10.5 | US 8.5 | 42 |
| AU 8 | US 11 | US 9 | 42.5 |
| AU 8.5 | US 12 | US 9.5 | 43 |
| AU 9 | US 10 | 43.5 | |
| AU 9.5 | US 10.5 | 44 | |
| AU 10 | US 11 | 45 | |
| AU 11 | US 12 | 46 | |
| AU 12 | US 13 | 47 | |
| AU 13 | US 14 | 48 |